Multilocus sequence typing reveals two evolutionary lineages of Acidovorax avenae subsp. citrulli.

abstract：:Barley is a host to Puccinia striiformis f. sp. hordei, and is an intermediate or near nonhost to the formae speciales adapted to wheat (P. striiformis f. sp. tritici) and to barley grass (P. striiformis f. sp. pseudo-hordei). The genetic basis of resistance to these forms of P. striiformis is not well understood. Acc...

journal_title：Phytopathology

authors： Haghdoust R,Singh D,Garnica DP,Park RF,Dracatos PM

更新日期：2018-05-01 00:00:00

abstract：:ABSTRACT Colletotrichum acutatum, which causes anthracnose disease on strawberry, can also persist on several other plant species without causing disease symptoms. The genetic and molecular bases that determine pathogenic and nonpathogenic lifestyles in C. acutatum are unclear. We developed a transformation system for...

journal_title：Phytopathology

authors： Horowitz S,Freeman S,Sharon A

更新日期：2002-07-01 00:00:00

abstract：:ABSTRACT Relationships between disease incidence measured at two levels in a spatial hierarchy are derived. These relationships are based on the properties of the binomial distribution, the beta-binomial distribution, and an empirical power-law relationship that relates observed variance to theoretical binomial varian...

journal_title：Phytopathology

authors： Hughes G,McRoberts N,Madden LV,Gottwald TR

更新日期：1997-05-01 00:00:00

abstract：:Tomato is an economic crop worldwide. Many limiting factors reduce the production of tomato, with bacterial wilt caused by Ralstonia solanacearum being the most destructive disease. Our previous study showed that the disease resistance to bacterial soft rot is enhanced by Bacillus amyloliquefaciens strain PMB05. This ...

journal_title：Phytopathology

authors： Ho TH,Chuang CY,Zheng JL,Chen HH,Liang YS,Huang TP,Lin YH

更新日期：2020-12-01 00:00:00

abstract：:ABSTRACT Plasmopara viticola populations collected from three islands in the Ionian Sea-an arm of the Mediterranean Sea to the west of Greece-were analyzed with microsatellite molecular markers in order to investigate the pathogen population structure. Downy mildew populations from mainland regions previously studied ...

journal_title：Phytopathology

authors： Rumbou A,Gessler C

更新日期：2006-05-01 00:00:00

abstract：:The Lasiodiplodia theobromae genome encodes numerous glycoside hydrolases involved in organic matter degradation and conducive to pathogen infection, whereas their molecular mechanisms are still largely unknown. Here, we identified the glycoside hydrolase family 28 endopolygalacturonase LtEPG1 in L. theobromae and cha...

journal_title：Phytopathology

authors： Thilini Chethana KW,Peng J,Li X,Xing Q,Liu M,Zhang W,Hyde KD,Zhao W,Yan J

更新日期：2020-10-01 00:00:00

abstract：:ABSTRACT Genes for copper resistance, located on the chromosome of strain XvP26 of Xanthomonas axonopodis pv. vesicatoria, were transferred by conjugation to a recipient strain of the bacterium. The chromosomal gene transfer was verified by analyses of the genomes of donor, recipient, and putative transconjugants for ...

journal_title：Phytopathology

authors： Basim H,Stall RE,Minsavage GV,Jones JB

更新日期：1999-11-01 00:00:00

abstract：:ABSTRACT Three similar isolates of Phytophthora (Phytophthora sp-h) were obtained from diseased Spathiphyllum and Primula plants. Cultural characteristics did not fit any known description of Phytophthora species. The Phytophthora sp-h isolates are papillate, are homothallic, possess 80 to 86% amphigynous antheridia, ...

journal_title：Phytopathology

authors： Man In 't Veld WA,Veenbaas-Rijks WJ,Ilieva E,de Cock AW,Bonants PJ,Pieters R

更新日期：1998-09-01 00:00:00

abstract：:Fig mosaic occurs worldwide and is the most common and important viral disease of fig. In the quest to identify the causal agent of the disease, several new viruses have been identified, including a new DNA virus, the subject of this communication. Phylogenetic analysis placed the virus, provisionally named Fig badnav...

journal_title：Phytopathology

authors： Laney AG,Hassan M,Tzanetakis IE

更新日期：2012-12-01 00:00:00

abstract：:Yellowing diseases of sugar beet can be caused by a range of strains classified as Beet mild yellowing virus (BMYV) or Beet western yellows virus (BWYV), both belonging to the genus Polerovirus of the family Luteoviridae. Host range, genomic, and serological studies have shown that isolates of these viruses can be gro...

journal_title：Phytopathology

authors： Hauser S,Stevens M,Mougel C,Smith HG,Fritsch C,Herrbach E,Lemaire O

更新日期：2000-05-01 00:00:00

abstract：:Western X (WX) disease, caused by 'Candidatus Phytoplasma pruni', is a devastating disease of sweet cherry resulting in the production of small, bitter-flavored fruits that are unmarketable. Escalation of WX disease in Washington State prompted the development of a rapid detection assay based on recombinase polymerase...

journal_title：Phytopathology

authors： Villamor DEV,Eastwell KC

更新日期：2019-06-01 00:00:00

abstract：:ABSTRACT Barley has two flowering types, chasmogamous (open-flowering) and cleistogamous (closed-flowering). We examined the effect of the timing of Fusarium graminearum infection on Fusarium head blight (FHB) and mycotoxin accumulation in barley cultivars with different flowering types using greenhouse experiments. I...

journal_title：Phytopathology

authors： Yoshida M,Kawada N,Nakajima T

更新日期：2007-09-01 00:00:00

abstract：:ABSTRACT Apple fruit tissues infected with Botryosphaeria dothidea were examined by transmission electron microscopy using susceptible cv. Fuji and resistant cv. Jonathan. Immature (green) and mature (red) fruits of cv. Fuji with restricted or expanding lesions were also examined to reveal subcellular characteristics ...

journal_title：Phytopathology

authors： Kim KW,Park EW,Kim YH,Ahn KK,Kim PG,Kim KS

更新日期：2001-02-01 00:00:00

abstract：:ABSTRACT A genetic map including three avirulence (Avr) genes, AvrPik, AvrPiz, and AvrPiz-t, was constructed in a genetic cross of two rice field isolates, 84R-62B and Y93-245c-2. The chromosomal locations of the Avr genes were determined by using selected markers to probe Southern blots of the parental chromosomes th...

journal_title：Phytopathology

authors： Luo CX,Yin LF,Koyanagi S,Farman ML,Kusaba M,Yaegashi H

更新日期：2005-06-01 00:00:00

abstract：:Clavibacter michiganensis is a Gram-positive bacterial pathogen that proliferates in the xylem vessels of tomato, causing bacterial wilt and canker symptoms. Accurate detection is a crucial step in confirming outbreaks of bacterial canker and developing management strategies. A major problem with existing detection me...

journal_title：Phytopathology

authors： Thapa SP,O'Leary M,Jacques MA,Gilbertson RL,Coaker G

更新日期：2020-03-01 00:00:00

abstract：:ABSTRACT Meta-analysis is a set of statistical procedures for synthesizing research results from a number of different studies. An estimate of a statistical effect, such as the difference in disease severity for plants with or without a management treatment, is collected from each study along with a measure of the var...

journal_title：Phytopathology

authors： Rosenberg MS,Garrett KA,Su Z,Bowden RL

更新日期：2004-09-01 00:00:00

abstract：:ABSTRACT Colletotrichum coccodes is a biocontrol agent of velvetleaf (Abutilon theophrasti), a noxious weed of corn and soybean. Metallothioneins (MTs) and basic region/leucine zipper motif (bZIP) are heavy-metal-binding proteins and transcription factors, respectively, that have been related to several plant processe...

journal_title：Phytopathology

authors： Dauch AL,Jabaji-Hare SH

更新日期：2006-10-01 00:00:00

abstract：:Asymptomatic plant colonization is hypothesized to enhance persistence of pathogenic forms of Fusarium oxysporum. However, a correlation between pathogen populations on living, asymptomatic plant tissues and soilborne populations after tillage has not been demonstrated. Living and dead tissues of broccoli, lettuce, sp...

journal_title：Phytopathology

authors： Henry PM,Pastrana AM,Leveau JHJ,Gordon TR

更新日期：2019-05-01 00:00:00

abstract：:ABSTRACT Monoconidial isolates of Venturia inaequalis were collected in 1990 and 1991 from orchards in New York, Michigan, and Nova Scotia that had never or only sporadically been treated with fungicides acting as sterol demethylation inhibitors (DMIs). Sensitivities of isolates to two representative DMIs (fenarimol a...

journal_title：Phytopathology

authors： Köller W,Wilcox WF,Barnard J,Jones AL,Braun PG

更新日期：1997-02-01 00:00:00

abstract：:The soilborne fungus Rhizoctonia solani anastomosis group 3 (AG-3PT) is a globally important potato pathogen. However, little is known about the population genetic processes affecting field populations of R. solani AG-3PT, especially in the South American Colombian Andes, which is near the center of diversity of the t...

journal_title：Phytopathology

authors： Ferrucho RL,Ceresini PC,Ramirez-Escobar UM,McDonald BA,Cubeta MA,García-Domínguez C

更新日期：2013-08-01 00:00:00

abstract：:Xylella fastidiosa releases outer membrane vesicles (OMVs) known to play a role in the systemic dissemination of this pathogen. OMVs inhibit bacterial attachment to xylem wall and traffic lipases/esterases that act on the degradation of plant cell wall. Here, we extended the characterization of X. fastidiosa OMVs by i...

journal_title：Phytopathology

authors： Feitosa-Junior OR,Stefanello E,Zaini PA,Nascimento R,Pierry PM,Dandekar AM,Lindow SE,da Silva AM

更新日期：2019-08-01 00:00:00

abstract：:Curly top in sugar beet continues to be a challenging disease to control in the western United States. To aid in development of host resistance and management options, the curtovirus species composition was investigated by sampling 246 commercial fields along with nursery and field trials in the western United States....

journal_title：Phytopathology

authors： Strausbaugh CA,Wintermantel WM,Gillen AM,Eujayl IA

更新日期：2008-11-01 00:00:00

abstract：:ABSTRACT Phytophthora capsici is a diverse species causing disease on a broad range of both temperate and tropical plants. In this study, we used cultural characteristics, amplified fragment length polymorphism (AFLP), and DNA sequence analyses of the ribosomal internal transcribed spacer (ITS) region and mitochondria...

journal_title：Phytopathology

authors： Bowers JH,Martin FN,Tooley PW,Luz ED

更新日期：2007-04-01 00:00:00

abstract：:ABSTRACT A fungivorous nematode, Aphelenchoides sp., was isolated from field soil by baiting with mycelium of the biocontrol fungus Trichoderma harzianum ThzID1, and subsequently was maintained on agar cultures of the fungus. Interactions between the nematode and the green fluorescent protein-producing transformant, T...

journal_title：Phytopathology

authors： Bae YS,Knudsen GR

更新日期：2001-03-01 00:00:00

abstract：:ABSTRACT Striga hermonthica is a parasitic weed endemic to sub-Saharan Africa. It most commonly parasitizes sorghum, maize, pearl millet, and upland rice, lowering yields and affecting the welfare of over 100 million people, principally subsistence farmers. Cereal crops with complete resistance to this pathogen have n...

journal_title：Phytopathology

authors： Vasey RA,Scholes JD,Press MC

更新日期：2005-11-01 00:00:00

abstract：:ABSTRACT The infection of Arabidopsis thaliana roots with the obligate parasite Orobanche ramosa represents a useful model for a study of the molecular events involved in the host plant response to a parasitic plant attack. To avoid analysis problems due to the subterranean development of O. ramosa, we developed two i...

journal_title：Phytopathology

authors： Dos Santos CV,Letousey P,Delavault P,Thalouarn P

更新日期：2003-04-01 00:00:00

abstract：:ABSTRACT Pasteuria penetrans is a bacterial parasite of root-knot nematodes that shows great potential as a biocontrol agent. Scanning and transmission electron microscopy were used to study the ultrastructure, morphology, and sporogenesis of four isolates of P. penetrans. The effects of different Meloidogyne spp. and...

journal_title：Phytopathology

authors： Chen ZX,Dickson DW,Freitas LG,Preston JF

更新日期：1997-03-01 00:00:00

abstract：:We studied spore dispersal by Dothistroma septosporum, causal agent of a serious outbreak of red band needle blight in lodgepole pine plantations in northwest British Columbia. Spore abundance was assessed at different distances and heights from inoculum sources and microclimatic factors were recorded during two conse...

journal_title：Phytopathology

authors： Boateng K,Lewis KJ

更新日期：2015-01-01 00:00:00

abstract：:ABSTRACT The influence of varying environmental and cropping conditions including temperature, light, soil type, pathogen isolate and race, and cultivar of tomato on biological control of Fusarium wilt of tomato by isolates of nonpathogenic Fusarium oxysporum (CS-20 and CS-24) and F. solani (CS-1) was evaluated in gre...

journal_title：Phytopathology

authors： Larkin RP,Fravel DR

更新日期：2002-11-01 00:00:00

abstract：:The manner in which deoxynivalenol (DON) and nivalenol (NIV) accumulation progresses in wheat grain infected with Fusarium graminearum and the influence of the time of infection on the accumulation of toxins were investigated. Four cultivars were tested in a greenhouse environment, where the plants were spray inoculat...

journal_title：Phytopathology

authors： Yoshida M,Nakajima T

更新日期：2010-08-01 00:00:00